diff options
Diffstat (limited to 'freebsd/sys/dev/usb/usb_transfer.c')
| -rw-r--r-- | freebsd/sys/dev/usb/usb_transfer.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/freebsd/sys/dev/usb/usb_transfer.c b/freebsd/sys/dev/usb/usb_transfer.c index 205a72f7..ab5558e1 100644 --- a/freebsd/sys/dev/usb/usb_transfer.c +++ b/freebsd/sys/dev/usb/usb_transfer.c @@ -945,7 +945,8 @@ usbd_transfer_setup(struct usb_device *udev, #if USB_HAVE_BUSDMA usb_dma_tag_setup(&info->dma_parent_tag, parm->dma_tag_p, udev->bus->dma_parent_tag[0].tag, - xfer_mtx, &usb_bdma_done_event, 32, parm->dma_tag_max); + xfer_mtx, &usb_bdma_done_event, udev->bus->dma_bits, + parm->dma_tag_max); #endif info->bus = udev->bus; @@ -1374,6 +1375,29 @@ usbd_control_transfer_init(struct usb_xfer *xfer) } /*------------------------------------------------------------------------* + * usbd_control_transfer_did_data + * + * This function returns non-zero if a control endpoint has + * transferred the first DATA packet after the SETUP packet. + * Else it returns zero. + *------------------------------------------------------------------------*/ +static uint8_t +usbd_control_transfer_did_data(struct usb_xfer *xfer) +{ + struct usb_device_request req; + + /* SETUP packet is not yet sent */ + if (xfer->flags_int.control_hdr != 0) + return (0); + + /* copy out the USB request header */ + usbd_copy_out(xfer->frbuffers, 0, &req, sizeof(req)); + + /* compare remainder to the initial value */ + return (xfer->flags_int.control_rem != UGETW(req.wLength)); +} + +/*------------------------------------------------------------------------* * usbd_setup_ctrl_transfer * * This function handles initialisation of control transfers. Control @@ -1478,6 +1502,11 @@ usbd_setup_ctrl_transfer(struct usb_xfer *xfer) len = (xfer->sumlen - sizeof(struct usb_device_request)); } + /* update did data flag */ + + xfer->flags_int.control_did_data = + usbd_control_transfer_did_data(xfer); + /* check if there is a length mismatch */ if (len > xfer->flags_int.control_rem) { |